Sold my Gem to NPC

Hello there,
i know its not a bug, its a mistake by myself... i accidentally sold my freshly bought Awakened Spell Echo Support to the NPC cause i wanted to make GCP with the vendor recipe and i was talking to my daughter... then i realized i sold it to the NPC. Please tell me there is a way you can check that and restore it for me :(

Items do no get restored for any reason, as per GGG policy.